Looping Animation

Hi there,

I'm trying to loop a Xamarin.Forms.Image.FadeTo() animation.
I want to fadeTo(0,1000,Easing.Linear)and after that i want to FadeTo(1, 1000, Easing.Linear) in an endless loop that can be canceled from outside.

I tried:

Task.Run(async () =>
            {
                while (!cancelConnectionAnimation.Token.IsCancellationRequested)
                {
                   Xamarin.Forms.Device.BeginInvokeOnMainThread(async () =>
                    {
                        System.Diagnostics.Debug.WriteLine("Fadeout");
                        await imgConnectionState.FadeTo(0, 1000, Easing.Linear);

                        System.Diagnostics.Debug.WriteLine("Fadein");
                        await imgConnectionState.FadeTo(1, 1000, Easing.Linear);                        
                    });
                    await Task.Delay(2000);
                }

            }, cancelConnectionAnimation.Token);

That does work, but I realy don't want to use Task.Delay() because it seems to me like a workaround.
Is it possible to await these tasks, so that i don't need to Delay the calling task?

It seems like an easy problem but unfortunatelly i could not find a way to await these mainthread tasks.

Thanks in advance.

Alex